Disk harrow.



PATENTED JAN. 29, 1907.

W. G. KING.

DISK HARROW.

APPLIQATION FILED r2345, 1906.

2 SHEETS-SHEET 1.

No. 842,671. PATENTBD JAN. 29, 1907.

' W. 0. KING.

DISK HARROW.

APPLICATION FILED FEB. 16, 1906.

2 BHEETS-SHEET 2.

UNITED STATES PATENT OFFICE. WILLIAM 0. KING, or CAMPBELL, no.1 FORNIA, AssioNon or one-1.1mm 'ro W. o. AIKEN, or CAMPBELL, CALIFORNIA.

DISK HAHROW.

Specification of Letters Patent.

Application filed February 16. 1906. Serial No. 301.417.

Patented Jan. 29, I907.

. To all whom it may concern:

Be it known that 1, WILLIAM C. Kine, a

" citizen of the United States,- residing at Campbell, in the county of Santa Clara and State of California, have invented new and -useful .Improvements in Disk llarrows, of

\ soil by the use of revoluble disks so mounted that they may be turned with relation to each other and those behind to follow in the spaces between those in front, the/adjustment being such as to balance any side draft which'might otherwise occur.

As shown in the drawings, A-reprcscnts a frame of any suitable or desired construction, and at the front and rear of the frame are pivoted the beams 2 and 2. These beams are preferably made of channel-iron, with the open faces downward, and are pivoted, as shown at 3, so as to be turnable horizontally about the vertical pivots. The disposition of the bars 2 and their pivots are such that the pair of bars 2 are pivoted in line transversely across the machine, and the bars 2 are in like manner pivoted transversely across the machine.

The disks 4 are of any suitable or desired construction and are mounted upon shafts 5, which are carried at the lower ends of standards 6. The rear standards are strongly braced by brace-rods, as at 7. The forward standards .are connected by brace-rods 8' with the draft-bar 9, to which the pole 10 is connected, as will be hereinafter described. The

brace-rods 7 and 8 have a swiveled or pivoted connection where they connect with the clips on the axles, as shown at 7 andS. The draft-bar is also connected with the main frame bybrace-rods, as at 11, thus making a substantially rigid construction, and'by reason of the location of the draft-bar 10 in approximately a horizontal line with the shafts 5 of the disks it will be seen that the draft is substantially in the line of said sllafls, with the advantage to be gained by such line of draft. As here shown the disks are arranged in sets of four 11 )()I1 each of the supportingl)(.iL],"S 2 2", and these brains are centrally pivoted and turnable with relation to the main frame A.

In order to turn the disk-carrying beams, l have shown rods or links 12, one end of each of the links being pivoted to the outer end of one of the disk-carrying beams 2 2, and the opposite ends are connected with a handlever 13 within convenient. reach of the driver, which may be located upon a seat, as at 14. The links 12 are connected with cranks 15, mounted upon a shaft 16, which is journaled to the main frame, and as the links from the rear may be connected with one of the crank or rocker arms--for instance, below the shaft 16and those from the front may be connected with the rockerarins above the shaft it will be seen that the movement of the lever will. turn the beams 2 2 in opposite directions, so that they may be made to converge in pairs.

' The disks mounted upon the rearmost beam 2 are so disposed withrelation to those upon the front beams that when. the two sets of disks have been turned to stand at the desired angles the front disks will cut and pulverize the earth in certain lines, whichwould ordinarilyleavcfurrows between them but the rearmost disks, by reason of the angles at which they stand, will cut and pulverize the soil in lines between those traversed by vthe front disks. Thus the whole surface traversed by the barrow or cultivator will be finely pulverized, and by means of a small supplemental disk 4 at the extremeouter end thalast of the furrows on that side of the apparatus will be finally leveled.

. The pole 10 is directly conl'iected with a shaft 18, and this shaft is slidable in boxes '19, which'are fixed to the draft-bar 9, so that if it is desired to cultivate next to trees, vines, or other shrubs the pole may be shifted by sliding in the boxes, and being.

Having thus described In invention, what I claim, and desire to secure by Letters Patent, 1s V 1. In a harrow, the combination of a main frame, a plurality of supglemental trans versely-extending front an rear bars upon opposite sides of the center of the mam frame, said bars having each a' centrally-located spindle and said main frame having sockets in which said spindles are turnable, shafts carried by the bars and provided with disks, braces extending from the central portions of the shafts to the mail. frame, and means by which the bars are turnable in unison and to (.li'll'erent angles.

2. In a harrow, the combination of a rectangular, rigid main .frame, transverselyextending channebbars at each side of the center of the frame and located at the front and rear ends of said frame, said bars having pendent standards and centrally-located vertical spindles, sockets on the main frame in which s indles are turnable, shaft-s journaled in the standards, and provided with disks, braces extending from central portions of the shafts to the main frame, and means b I which the front and rear bars at either side of the center of the main frame may be turned simultaneously and to opposite angular positions. a

3. In a harrow, the combination of a rectangular main frame, transversely-extending channel-bars at the front and rear of the main frame and disposedupon opposite sides of the center thereof, means turnably connecting the central portions of the bars with the mainframe, disk-carrying shafts mounted on the bars, means connecting tions of the rear shafts with the main frame, means whereby the front and rear bars upon either side of other, a draft-bar, connections between it and the front of the main frame, and connections between'the front disk-shafts and the draft-bar.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

, WILLIAM 0. KING;

Witnesses:, V W

R. K. THOMAS,

JoHN- L. HAIGELIN.

the s central I porthe frame maybe turned to o poslte angular positions relative to eac 

